Colin Walcott dies at his surprise birthday party, where his wife Tess and daughter Cathy find out about his other wife and daughter. Cat and Cathy are polar opposites but eventually bond when deciding where to scatter his ashes.
Cathy is forced to take compassionate leave from work but can't bear to tell Tess, so Cat lets Cathy hide at her house and throws her a party to cheer her up
Cathy proposes that they get Colin a memorial bench, but as Cat doesn't have the money, she must improvise. Cathy also agrees to teach Cat how to ride a bike, with disastrous results.
With her mum refusing to go, Cathy's hen do invitees are Auntie Dawn, Marilyn, Cat, and an old school friend. It doesn't turn out to be the classy, edifying affair Cathy wanted.
It's the night before the wedding, but Cathy can't enjoy her drink-up; she's obsessed by a scuff on the wall Marcus made, and the sisters run into Cat's old school bully.
Cat decides to take Cathy on their own sister honeymoon to cheer her up. Marilyn finds Colin's missing will, and she and Tess need to tell the girls the shocking news.
